D．wondering

　　20．A.warn

　　B．remind C．expect

　　D．promise

　　Ⅲ.七选五

　　(2016·山西高三上学期诊断)

　　How to Sleep Better

　　If you’re having trouble getting good sleep through the night (turning，waking up more than once，for example)，this text will tell you what you can do to ensure a peaceful night’s sleep.

　　1．Get on schedule.Changing your sleeping time by more than an hour can severely disturb your sleep quality.__1__For example，if you normally wake up at 6 am on weekdays to get to work，you might go to bed around 10 pm，because that’s when you start to feel sleepy，and it’s also a good time to ensure 8 hours of sleep.If，on the weekend，you sleep until 9 am，you probably won’t be able to fall asleep that night until 1 am.

　　2．__2__Wait at least three hours after dinner before going to sleep.Digestion slows down while asleep，and a full stomach may interrupt sleep.Similarly，you should avoid going to bed on an empty stomach，as a completely empty stomach may equally disturb your sleeping patterns.

　　3．__3__Exposure to light during the time when you’re supposed to be sleeping can disrupt your body’s internal clock.Turn your light off，or use a very dim night light.__4__They include windows，LED clocks，computer lights and cable boxes.

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